#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>

int main() {
	int a = 0;
	int b = 0;
	
		
	while (scanf("%d %d", &a, &b) != EOF) 
	{
		 int c = a + b;
		printf("%d\n", c);
	}
		
	

	return 0;
}